As the international community and the United States have been struggling with how to address human-made climate change, some voices have started calling for conscious efforts to engineer the earth's climate in order to limit the amount of damage humankind will incur in the 21 st century and beyond. Consider, for instance, former Exxon Mobil CEO and US Secretary of State Rex Tillerson's remark to the effect that climate change is "an engineering problem and it has engineering solutions." 1 According to J.G. Shepherd, "geoengineering is deliberate intervention in the climate system to counteract man-made global warming." 2 He goes on to reference two main classes of geoengineering, "direct carbon dioxide removal and solar radiation management that aims to cool the planet by reflecting more sunlight back to space." 3 So far, much of the discussion regarding geoengineering has been taking place in the Northern Hemisphere, especially in English-speaking countries, although it has also been happening on occasions in China. 4
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